the formula for the fraction of the current periods movement is: Factor = 2 / (Periods + 1)
A 9 period EMA would be 0.2 = 2 / (9 + 1) --- In [email protected], "Mike" <sfclimb...@...> wrote: > > Keith, > > He was asking for the smoothing factor, not the period. The smoothing factor > is a value between 0 and 1, as described in the document pointed to by his > link. > > It is a good question. After some brief searching, I could not find the > answer. Though, I suppose you could fire up a chart using a short period and > do the math, as per the comments of DEMA. > > http://www.amibroker.com/guide/afl/afl_view.php?id=42 > > Mike > > --- In [email protected], Keith McCombs <kmccombs@> wrote: > > > > It's settable by you. Right click in the chart that is displaying ema. > > Select "edit formula", and find EMA(n) -- n is the period and you can > > set it to whatever you want. > > > > On 3/26/2010 18:48, mpdx58 wrote: > > > > > > Does anyone know what the smoothing factor is that Amibroker uses when > > > calculating the exponential moving average? > > > > > > http://en.wikipedia.org/wiki/Exponential_smoothing#The_exponential_moving_average > > > > > > <http://en.wikipedia.org/wiki/Exponential_smoothing#The_exponential_moving_average> > > > > > > > > >
